tr.v. de·cer·e·brat·ed, de·cer·e·brat·ing, de·cer·e·brates
To eliminate cerebral brain function in (an animal) by removing the cerebrum, cutting across the brainstem, or severing certain arteries in the brainstem, as for purposes of experimentation.
adj. (also -brĭt)
1. Deprived of cerebral function, as by having the cerebrum removed.
2. Resulting from or as if from decerebration: decerebrate rigidity; decerebrate movements.
3. Lacking intelligence or reason.
n. (also -brĭt)
A decerebrate animal or person.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.